While I'm probably in no position to give anyone advice, that's never stopped me before
Perhaps its just too much, too fast for her? You went from an elder going gung-ho to stepping aside to coaching your kid's basketball team in what, a month? I actually admire your decisiveness since I'm moving extremely slow.
Maybe you need to back off just a touch and give her some time to process things. Especially if she's a lifelong JW. Everyone takes things at a different pace.
Really, though, you know your wife the best. Follow your gut.